Biography:In her youth, Aki caused accidents while dueling, often
resulting in people getting hurt or injured. Aki later attended a Duel
Academy as a young teenager, where she inadvertently caused more
accidents due to the instability of her special powers. Because of
these incidents, she became separated from most people and kept herself
away from them. Thus taking on the persona of the "Black Rose Witch".
Aki is later found by Divine, a mysterious looking man who has a
profound interest to Aki and her powers.

Her first appearance
was when Leo and Dexter decide to challenge the Black Rose Witch to a
duel. Right then Aki the "Black Rose Witch" appeared and that's when
Aki first sees Yusei Fudo and his Dragon's Birthmark. She sees Yusei as
a challenge since she knows he possesses a mark like hers as well.

Aki
is a participant of the Fortune Cup and faces Jill deLauncebeaux as her
first opponent. She wins the Duel with her signature card "Black Rose
Dragon" and is then exposed as the feared "Black Rose Witch". Which was
Jeager and Rex Godwin's intention. They also wanted Jill to expose her
as a Signer, however even though she used her powers in the Duel,
Akutsu's D-Sensor didn't receive a reading.

Aki's next opponent
in the Fortune Cup for the second round is the Duel Profiler, Kodo
Kinomiya, a mysterious man who attempts to confuse and manipulate her
with tragic insights from her dark past. After being pushed to her
psychological limits by Kodo, Aki loses control as her mark is revealed
which makes her more unstable than usual. Aki is victorious and moves
on to the final round where she faces Yusei Fudo.

After her
first attack against Yusei becomes reality, he angrily exclaims that
she enjoys inflicting pain on others. With a slightly insane smile, Aki
replies that she is the "Black Rose Witch," a fearful lady who finds
pleasure in other's pain, but Yusei knows that her hidden emotion is
something else. Yusei ends up defeating Aki in the end. Aki is then
taken away from the scene by Divine.

When the Crimson Dragon
appeared in the middle of Yusei's and Jack's duel, it showed her,
Yusei, Jack, and Luna a vision of the Satellite area being destroyed by
a mysterious spider drawing which looks like the spider drawings of the
Nazca lines.

Before Yusei's confrontation with Kyosuke Kiryu,
his birthmark begins to react inside of the B.A.D area. This triggers
Aki, Luna, and Jack's birthmarks as well. Aki instinctively senses that
he is responsible for the reaction and knows that it is related to the
vision they witnessed during the Fortune Cup. Leo goes in search of her
for her aid in fighting the Dark Signers, but he, along with Luna are
kidnapped by Divine. Whilst looking for Divine, who had gotten involved
in a duel against Carly, she encounters Misty, who reveals herself as a
Dark Signer. She challenges Aki to a duel for revenge.

Dragon Mark:Aki's
Birthmark allows her to make any damage done in a duel to her opponent
real. So this is why she caused accidents when dueling because she
didn't know how to maintain the power. She wears a hairband to keep
these powers under control.

When Leo and Dexter decide to
challenge the Black Rose Witch to a duel, Aki first sees Yusei Fudo and
his Dragon's Birthmark. She expressed surprise to the fact that another
individual also possesses such a birthmark. She notes it as a "wretched
mark" before she leaves from the scene. After meeting Yusei, Aki
changes her outlook on the world. Since they haven't had a chance to
talk, she sees Yusei as a challenge since she knows he possesses a mark
similar to hers.

In the semifinals, her opponent for the round
was Kodo Kinomiya. Despite Kodo pushing her psychological limits, Aki
still claims victory in the duel. Her dragon mark, the left claw, is
revealed towards the end of the duel.

Deck:Aki plays a Plant
Deck that is "Black Rose" themed. Her cards consists of gaining control
of her opponents' monsters and inflicting damage by card effects. It is
also aimed at summoning her ace card "Black Rose Dragon", the monster
that supposedly led to her alias, the "Black Rose Witch."